Take-out mechanism for glassware forming machine



United States Patent inventors Appl. No.

Filed Patented Assignee Francis A. Sarkozy;

Wasyl Bystrianyk, West Hartford, Conn.

Nov. 4, 1968 Dec. 22, 1970 Emhart Corporation Bloomfield, Conn.

a corporation of Connecticut TAKE-OUT MECHANISM FOR GLASSWARE FORMINGMACHINE 5 Claims, 4 Drawing Figs.

us. Cl 294/81, 65/260: 214/1; 294/87.24, 294/1 [9 Int. Cl. C03b 9/44Field of Search 294/87, 24,

[56] References Cited UNITED STATES PATENTS 3,125,369 3/l964 Copping294/87.24 3,220,566 ll/l965 Rowe 65/260X Primary Examiner-S. LeonBashore Assistant ExaminerRobert L. Lindsay, Jr. Attorney-McCormick,Paulding and Huber PATENTEU 050221970 FIG- PIC-3-2 TAKE-OUT MECHANISMFOR GLASSWARE FORMING MACHINE SUMMARY or run INVENTION This inventionrelates to-devices for transferringglassware articles from the finalmolding station of the glassware forming machine to a cooling station,or other delivery point, and deals more particularly with a takeoutmechanism of improved design for efficiently handling groups of newlyformed ware at high production rates. 7

The general object of the presentinvention is to provide a takeoutmechanism wherein the tongs for gripping the ware are provided on acommon axis and are operated through a novel lightweight linkage havingno springs exposed to the heat radiated by the rapidly cooling wareduring transfer from the molding station to the cooling station, orother delivery point. I v

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an elevation view of aglassware take-out mechanism constructed in accordance with the presentinvention, also showing the oscillatable mounting. arm and associatedsupportshaft upon which mechanism is mounted, the latter portions beingshown broken away to'reveal the valving for regulating a fluid actuatorcontained inthe housing for said mechanism.

' FIG. 2 is a vertical sectional view of the mechanism shown in FIG. 1,being taken on line 2-2 of that figure.

FIG. 3 is a partial view of the ,lower portion of the mechanism shown inFIG. 1 with the tongs being shown in their open position. 1 Y J P16; 4is a sectional view taken on line 4-4 of FIG. 2.

. DETAILED DESCRIPTIO g The takeout mechanism to be described isintended for use in a glassware forming. machine of the Hartford 1. 8.type wherein a plurality of sections are adapted to form one or moreglassware articles per section as generally described in U.S. Pat.-.No.1,911,119 issued to lngleMay 23, 1933. The

various components of such a machine are air operated in tintedrelationship with one another, and while such a machine need not bedescribed in detail herein, it is noted that the oscillating arml2 andits associated shaft 10, shown in FIG. 1 are driven in timedrelationship with'other components of the glassware forming machine, asfor example, the mechanism for opening the blow mold at the finalforming station of such amachine.

The movable an'n- 12 is pivotally mounted in the fixed frame of themachine and includes suitable ports 14 for providing air under pressureto a bore 16 in the shaft for operation of a fluid actuator to bedescribed. The takeout mechanism has a housing 18, indicated generallyat 1,8, which is threadably mounted to one end portion of the shaft 10by a cap 20 which cap defines the upper portion of thehousing'lS. Thecap 20 defines an internal passageway, as shown at 24, in order toprovide air under pressure to a fluid actuator provided in an upperportion 26 of the takeout mechanism housing 18. The

. case, the cross bar 40 may tilt in themanner described above.

arm 12 is adapted to oscillate through a predetermined angulardisplacement, and the shaft 10 is held against rotation by a sprocket 28so that the housing 18 of the takeout mechanism remains in a dependingposition during pivotal movement of the arm 12. g 1

The housing 18 of the takeout mechanism is of elongated cylindricalshape, having an upper portion 26 which defines a cylinder, best shownin FIG. 2, for slidably receiving an air operated piston 30. The piston30 has a'piston rod 32 extending upwardly therefrom into a bore in thecap 20 so as to guide the piston 30 during its reciprocatory movement. Aplunger -34 extends downwardly from the piston 30 being slidably theplunger 34 is slotted as best shown-at 38 in FIG. 4 to receive a crossbar 40 which is pivotally mounted to the plunger on an axle or pin 42.The cross bar 40 includes outwardly extending arm portions which areslidably received in slots 44, 44 defined in the housing 18. These slots44, 44 are derside of the cross bar, at the plungerconnection point, to

urge these parts upwardly when air under pressure is not supplied to theupper side of the piston 30. As so located the compression spring 48 iseffectively isolated from radiant heat given off by the ware beingtransferred.

The generally cylindrical lower sidewall 50 of the housing 18 and thelowermost end portion 52 thereof are arranged between said spring andsaid glassware to provide a sheltered environment for the single returnspring 48.

A rockshaft 54 is pivotally mounted in the lower end por tion of thehousing 18, and is oriented in generally parallel relationship to thecross bar 40, with its opposite end portions protruding outwardly beyondthe sidewall 50 of the housing. in

downwardly spaced relationship to the ends of thecross bar 40. A pair ofwere engageable tong means 56, 56 are pivotably mounted on theprotruding rockshaft end portions for movein response to verticalmovement of the cross bar and plunger.

An upper portion of each connecting link 64 carries a generally squarepin 66 which is slidably received in a laterally extending slot 68 inthe end portion of the cross bar 40 to allow limited lateral movement ofthe cross bar with respect to the connecting link 64 so that the tongmeans 56 can accommodate pairs of glassware articles of slightlydifferent height, or so that one tong means can be used to pick up asingle article of glassware.

The'tong means 56, $6 and associated toggle 58, 58 may be ofconventional construction, in that downward movement of the kneeportions 62, 62 of the toggle, ,causes closing movement of the jaws 70,70 to grip the articles of glassware so that they can be raised from themolding station of a glassware forming machine by pivotal movement ofthe arm 12 and for transfer to a deadplate, or other delivery stationalongside the machine. The glassware article is released by upwardmovement of the knee portions 62,- 62 inresponse to return movement ofthe spring 48. In the event that the portion of the two differentdiameters or cross sectional dimensions, the jaws of one tong means mayclose into engagement with its article in advance of the closing of thejaws of the other tongs. ln such a as a result of the lateral slots 68,68 provided for thiS P pose. Thus, the second tong, and its associatedjaws may also be closed prior to transfer of the glassware articles.

' Weclaim:

1. A takeout mechanism for a glassware forming machine havingoscillatory means driven intimed relationship with other glasswareforming machine components, said takeout mechanism comprising a fluidactuator having a housing adapted for attachment to said means,a'vertically reciprocable plunger movably mounted in said housing, across bar pivotally mounted to a lower end portion of said plunger andslidably mounted in said housing,'a compression spring acting between-alower end portion of said housing and said plunger to urge the latterupwardly, a rockshaft pivotally mounted in the lower end portion of saidhousing in generally parallel relationship to said cross bar and havingend portions protruding outwardly beyond said housing, a pair of wareengageable tong means-pivotally mounted on said protruding rock shaftiid-portions, and toggle link means for connecting said tong riieans tothe ends .of said crossbar'for operation of said tong means in responseto vertical movement of said cross bar.

' 2; The combination defined in claim Iwherein said housing ha s'anupper portion which defines an air cylinder, a sleeve Bearing mounted inan intermediate portion of the housing for slidably supportingsaid'plunger, and a lower portion of said li riusing which is generallycylindrical, said lower cylindrical pidnionoi said housing having anupper port with diametricially opposed side openings'forslidablyreceiving said cross 5 5i, and said lower cylindrical portion providinga protective enclosure for said compression spring and having adiametri- Cally extending bore in its lowermost end for rotatablyreceiving said rockshaft.

'3. The combination defined in claim Iv/herein said fluidactiiatorineliides a piston 'slidably' received in said upper cylinderdefining portion of said'housing, said plunger being cnnected to saidpiston for movement therewith, hardened a spring retaining washermounted on the lower end of said plungerengaging the underside of bar..

4. The combination defined'in. claim '3 wherein each of said toggle linkmeans includes a knee portion movable toward, and away from itsassociated, rockshafl end portion; and connecting links for connectingthe ends of said cross bar to.said. toggle link knee portionsrespectively.

5. The combination defined in claim -4 wherein nec'ting links are.pivotally connected at their lower ends to said toggle link kneeportions respectively; and pivot pin means at the upper ends of saidconnecting'links for both pivotally connecting said links to said crossbar ends and for permitting limited lateral movement therleof toaccommodate pairs of glassware articles of varying size.

said I cross bar ends define laterally extending slots, and wherein saidcon

